Question

Find the difference between the largest number of seven digits and the smallest number of eight digits.

Answer 1

Largest number of $$7$$ digits $$= 9999999$$

Smallest number of $$8$$ digits $$= 10000000$$

Difference $$= 10000000 − 9999999$$

$$= 1$$

$$\textbf{Hence, the difference between the largest number of seven digits and the smallest number of eight digits is 1}$$.